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For Sale: Belles 350A Reference Stereo Power AmplifierThe Iron Fist in a Velvet Glove.Up for sale is the legendary Belles 350A, a high-current powerhouse designed by David Belles. Known in audiophile circles for its incredible grip and musicality, this amplifier is the perfect solution for demanding speaker loads—especially those that require stable power and high current to truly sing.The 350A delivers a massive soundstage with a "dead quiet" floor, allowing micro-details to emerge from the darkness. Whether you are driving difficult electrostatic panels or power-hungry floorstanders, this amp provides the headroom and transient speed to handle complex orchestral swells and tight, percussive bass with absolute composure.Technical Specifications| Power Output | 250 Watts per channel @ 8 Ohms / 500 Watts per channel @ 4 Ohms || Damping Factor | > 2,000 || Frequency Response | 0.2 Hz to 125 kHz || Input Sensitivity | 1.91 Volts for rated power || Input Impedance | 100,000 Ohms || Distortion (THD) | Less than 0.05% at rated power | Crosstalk | > 60 dB || Dimensions | 17" W x 5.25" H x 16.5" D || Weight | Approx. 65 lbs (Shipping) |Key Features for the Discerning Listener * High Current Delivery: Capable of driving low-impedance loads without breaking a sweat. * Dual-Mono Design: Exceptional channel separation for a focused, holographic 3D image. * Built to Last: Overbuilt power supply featuring a massive toroidal transformer and high-quality filter capacitors. * Refined Aesthetics: Minimalist thick-brushed aluminum faceplate that looks as solid as it sounds.> Condition Note: This unit is in excellent physical and functional condition. It has been meticulously cared for in a smoke-free, climate-controlled environment.Shipping: Available in protected packaging or local pickup Experience your music library again for the first time. The Belles 350A doesn't just play music; it commands it.
This is a well-regarded Dual/Belles-era stereo power amp, but the ask is ambitious versus your recent comps. At US$1,650, it sits far above the US$306 75th percentile and well above the US$199 median, so this is not a market-price bargain in the current used pool.
What still makes it interesting is the brand’s reputation for muscular, clean, high-current amplification and a generally no-nonsense build that can pair well with demanding speakers. In excellent condition, the upside is a clean, ready-to-enjoy example of a respected older amp, but at this price I’d want strong proof of service history, original ownership, and zero channel imbalance/noise issues before leaning in.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Dual emerged from the Black Forest region of Germany in 1907, when brothers Christian and Joseph Steidinger began manufacturing clockwork and gramophone components in St. Georgen. The company adopted its now-iconic name in 1927 after pioneering dual-mode power supplies that allowed gramophones to operate from either mains electricity or mechanical wind-up mechanisms. This innovation marked the beginning of Dual's transition from component supplier to full-fledged audio manufacturer, establishing a foundation of engineering precision that would define the brand for decades.
Dual built its reputation primarily as a turntable specialist, becoming Europe's largest turntable manufacturer by the post-war era with over 3,000 employees across multiple factories. Beyond vinyl playback, the company expanded into cassette players, CD players, and broader consumer electronics throughout the 1970s and 1980s, demonstrating versatility across analog and digital formats. The company's focus on mechanical excellence and stable drive systems earned it recognition as a dependable, quality-focused manufacturer throughout its European heyday.
Today, Dual occupies a fragmented market position following corporate restructuring in the 1990s and subsequent ownership changes. The original German turntable line continues production in St. Georgen under Alfred Fehrenbacher GmbH, maintaining traditional manufacturing standards and appealing to vintage enthusiasts and collectors. Separately, Namsung Electronics markets Dual-branded consumer electronics in the Americas at accessible price points. The brand's legacy rests primarily on its classic turntables, which remain highly sought after by collectors and audiophiles valuing precision engineering and heritage craftsmanship.
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